Mary Poppins was an English nanny, who took unruly charges under her wing, and turned them into solid and upright sorts.
The show is currently playing at The Civic in Auckland.
About 10 million people around the world have already seen it and it has raised $800 million.
Tristram Clayton and Lachlan Forsyth were appropriately sent to watch the dress rehearsal.
Watch the video for their adventure.